Hoping someone can shed some light on this. We've had this daylily about a year. It was in a cedar container with some other plants. It did ok in the cedar planter, or at least I thought so, I have no experience with them so I had nothing to compare it with.

This year I did some rearranging of plants in the cedar planter. I removed all the potting soil and tossed it because there used to be an orange trumpet vine in the same planter and it formed a mat of roots on the bottom. I put the daylily in a large terra pot with fresh potting soil and a bit of soil amendment. It looks like a different plant, almost overnight the leaves and stems grew much taller. I don't have a before picture, but here's the after picture, it's about twice the height it used to be and much healthier looking.

So my question is, does potting soil eventually wear out or something? Or maybe some of the other plants in that same container were crowding it? I had the same kind of success when I moved a couple of Aquilegia plants from the ground to the cedar container.

Trumpet vine is aggressive and probably was a water and nutrient hog!
Potting soil does wear out. Pretty quickly in warmer areas. I replace
1/4 to 1/3 of the soil in my outdoor plants yearly. Just take a little soil out (do not throw away, add to manure or compost to refresh) and put in new soil or compost. Ever so often maybe every 4 to 5 years, I change out all the soil. Many blessings for your continued success!

Altheabyanothername said:Trumpet vine is aggressive and probably was a water and nutrient hog!
Potting soil does wear out. Pretty quickly in warmer areas. I replace
1/4 to 1/3 of the soil in my outdoor plants yearly. Just take a little soil out (do not throw away, add to manure or compost to refresh) and put in new soil or compost. Ever so often maybe every 4 to 5 years, I change out all the soil. Many blessings for your continued success!

Thanks for the tips. Turns out that's pretty much what I've started doing this year (but it's only been a year since we got the planters). Especially since I learned that potting soil isn't real dirt (Container Gardening for Dummies has been very helpful for me). The trumpet vines are gone (I had two of them in different containers). I hate to let go of a healthy plant, but when I learned that they are, at the very least, high maintenance, they got the heave-ho. Fortunately they were relatively young and not climbing on anything yet. I did first try to find a home for them on Craigslist, but had no takers.